package com.itheima.dao.impl;

import com.itheima.dao.BookDao;

public class BookDaoImpl implements BookDao {
    public BookDaoImpl() {
        System.out.println("BookDaoImpl 的构造方法正在执行");
    }

    @Override
    public void save() {
        System.out.println("book dao save ...");
    }
}
